Optoma UHZ68LV 4K UHD Dual-Laser Projector

The Optoma UHZ68LV is a high-brightness 4K UHD DLP home cinema projector combining dual-laser illumination, Dolby Vision, HDR10+, 5,000 lumens and extensive installation controls.

Its broad feature set makes it suitable for films, television, sport and gaming, whether installed in a dedicated cinema room or a multipurpose living space.

CTA-Compliant 4K UHD Resolution

The UHZ68LV displays 3840 x 2160 resolution with the 8.3 million on-screen pixels required by the Consumer Technology Association’s 4K UHD specification.

Optoma’s single-chip DLP system uses XPR pixel-shifting technology to create the complete 4K UHD image. This is different from a projector containing a native 3840 x 2160 imaging panel, but it meets the CTA definition of 4K UHD and displays four times the pixel count of Full HD.

The increased resolution is particularly valuable on large projection screens, where fine textures, distant objects and small details can remain visible from a closer seating position.

5,000-Lumen High-Brightness Projection

Optoma specifies a brightness of 5,000 lumens, allowing the UHZ68LV to support larger image sizes and more flexible room conditions than many lower-output home cinema projectors.

This brightness is useful for daytime sport, gaming and television, as well as rooms where total light control is impractical. Direct sunlight or strong room lighting falling across the screen will still reduce contrast and black level.

For critical film viewing, controlling ambient light and choosing an appropriate screen will allow the projector’s contrast, shadow detail and HDR presentation to perform more effectively.

Dual-Laser Colour

The dual-laser light source uses an additional red laser to extend colour reproduction. Optoma specifies 100% coverage of Rec.709 and up to 95% coverage of the wider DCI-P3 colour gamut.

Rec.709 is the established colour standard for high-definition television and Blu-ray, while DCI-P3 coverage helps reproduce the broader range of colours available from compatible UHD and HDR content.

The laser light source is rated for up to 30,000 hours in Eco mode, eliminating routine lamp changes during its expected operating life. It also provides rapid start-up and shutdown.

Dolby Vision and HDR10+

Dolby Vision and HDR10+ both use dynamic information to optimise compatible HDR content as scenes change. This can preserve more highlight and shadow detail than a single fixed adjustment applied across an entire film.

The UHZ68LV also supports standard HDR10 and HLG. HDR10 is widely used for UHD Blu-ray and streaming, while HLG is principally associated with compatible broadcast and live television material.

HDR performance will vary with screen size, picture mode and room conditions. Projectors cannot reproduce HDR in exactly the same way as high-brightness televisions, so correct tone mapping and light control remain important.

PureEngine Ultra Processing

PureEngine Ultra combines a collection of Optoma picture-processing technologies designed to adjust motion, colour, contrast, brightness and perceived detail.

PureMotion frame interpolation can reduce motion judder during sport and fast camera movement. PureContrast, PureLight, PureColor and PureDetail provide further control over different aspects of the image.

These features can be adjusted or disabled. Some viewers prefer motion processing for sport and games but a more natural presentation for films.

Filmmaker Mode and ISF Calibration

Filmmaker Mode is designed to preserve the source’s original frame rate, aspect ratio and creative presentation while disabling unnecessary motion smoothing and other post-processing.

The projector also provides ISF Day and Night modes, including HDR variations. A suitably trained calibrator can use these modes to store settings optimised for bright and dark viewing conditions.

4K 120Hz and Full HD 240Hz Gaming

The HDMI 2.1 input can accept compatible 4K game signals at up to 120Hz, while Full HD operation supports refresh rates up to 240Hz.

Optoma quotes a minimum input lag of approximately 8.5ms at 1080p 240Hz. At 1080p 120Hz, the published figure is approximately 12.5ms, while 4K 60Hz and 1080p 60Hz are approximately 20ms in Ultra Low Latency mode.

Auto Low Latency Mode can activate an appropriate gaming setting when a compatible console or computer supplies the required metadata. The lowest-latency mode disables geometric correction and some image processing because these functions introduce additional delay.

Dolby Vision gaming is limited to refresh rates of up to 60Hz, and the projector does not provide Variable Refresh Rate support.

1.6x Zoom and Two-Axis Lens Shift

The 1.2:1 to 1.92:1 throw ratio is paired with a 1.6x manual optical zoom. This provides a useful range of possible installation distances for a given screen size.

Vertical lens shift covers approximately 106% to 126%, while horizontal lens shift provides around ±10% adjustment. Lens shift moves the image optically and is therefore preferable to digital keystone correction whenever the installation allows.

Horizontal and vertical keystone correction of up to ±30 degrees and four-corner adjustment are also available for situations where physical alignment cannot fully square the image.

Projection Distance and Screen Size

Optoma specifies an image range of approximately 31 to 301 inches and a projection distance of approximately 1 to 10 metres. The practical size will depend on the room, screen, viewing distance and required brightness.

As a guide, a 100-inch 16:9 image requires approximately 2.7 to 4.3 metres between the projector lens and screen, depending on the zoom position.

Final measurements should always be confirmed using Optoma’s current projection calculator before fixing a screen, ceiling mount or concealed cable route.

HDMI 2.1, eARC and System Connectivity

The UHZ68LV provides one HDMI 2.1 input and two HDMI 2.0 connections. These can accommodate an AV receiver, games consoles, UHD Blu-ray player, television receiver or external streaming device.

Compatible HDMI connections support eARC, allowing formats including Dolby Atmos to be passed to a suitable soundbar, AV receiver or audio system.

The projector also provides optical digital and 3.5mm analogue audio outputs, three powered USB-A connections, an RJ45 network-control port, RS232, a 3D synchronisation output and two 12V triggers for compatible automated screens or installation equipment.

Built-In Stereo Speakers

Two built-in 5W speakers provide convenient stereo sound for temporary setups or situations where a separate system is unavailable.

A dedicated home cinema amplifier and speaker system will provide clearer dialogue, greater scale, deeper bass and more convincing surround sound. The UHZ68LV’s eARC and digital audio connections make integration with an external system more straightforward.

Wireless Features and Streaming

The UHZ68LV does not contain a complete television-style platform with the principal UK streaming services installed. An external streaming player, games console, disc player or television receiver should be connected by HDMI for services such as BBC iPlayer, Netflix, Disney+, Prime Video and Apple TV+.

Optoma lists the EZC-USB wireless adapter as an optional purchase. When correctly equipped and configured, this can provide compatible wireless display and screen-mirroring functions.

Full 3D Support

The UHZ68LV supports compatible frame-packed, side-by-side, top-and-bottom and frame-sequential 3D formats.

It can work with DLP-Link or compatible infrared 3D systems. Suitable source equipment, content, glasses and an external emitter may be required and are generally sold separately.

Substantial Installation Projector

The UHZ68LV measures 498mm wide, 331mm deep and 171mm high with its feet fitted. Its current UK specification gives a net weight of 9.2kg.

This is substantially larger and heavier than the compact UHZ58LV. The ceiling mount, shelf or equipment platform must therefore be suitable for the projector’s size and weight, with adequate clearance around its ventilation openings.

Support for 360-degree orientation and continuous operation provides installation flexibility, subject to the operating conditions and ventilation guidance in Optoma’s manual.

Choosing the Right Projector and Screen

The UHZ68LV’s 5,000-lumen output makes it particularly attractive for large screens and flexible living spaces, but brightness alone does not determine picture quality.

Throw distance, screen material, image size, seating position, ambient light and room colour all affect the result. An Audio T demonstration can help compare the UHZ68LV with compact alternatives and establish whether its additional brightness and installation flexibility justify its larger chassis.

Browse more projectors and screens or explore Audio T’s wider home cinema and AV range.

Frequently Asked Questions